Solvothermal synthesis of superhydrophobic hollow carbon nanoparticles from a fluorinated alcohol

Nanoscale ◽  
2015 ◽  
Vol 7 (38) ◽  
pp. 16087-16093 ◽  
Author(s):  
S. M. Lyth ◽  
W. Ma ◽  
J. Liu ◽  
T. Daio ◽  
K. Sasaki ◽  
...  
Keyword(s):  
Solvothermal Synthesis ◽  
Carbon Nanoparticles ◽  
Elevated Temperatures ◽  
Simple Method ◽  
Fluorinated Alcohol ◽  
Fluorinated Carbon ◽  
Hollow Carbon

A new and simple method of synthesizing fluorinated carbon at the gram scale is presented by reacting a fluorinated alcohol with sodium at elevated temperatures in a sealed Teflon reactor.

Nitrogen-Doped Hollow Carbon Nanoparticles with Excellent Oxygen Reduction Performances and Their Electrocatalytic Kinetics

2011 ◽  
Vol 115 (50) ◽  
pp. 25148-25154 ◽  
Author(s):  
Guixiang Ma ◽  
Rongrong Jia ◽  
Jianghong Zhao ◽  
Zhijian Wang ◽  
Chang Song ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Carbon Nanoparticles ◽  
Nitrogen Doped ◽  
Hollow Carbon

scholarly journals Hollow carbon-based nanosystem for photoacoustic imaging-guided hydrogenothermal therapy in the second near-infrared window

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 12022-12029
Author(s):  
Zhuo Jia ◽  
Rong Dai ◽  
Ziliang Zheng ◽  
Yufei Qin ◽  
Ailin Duan ◽  
...  
Keyword(s):  
Carbon Nanoparticles ◽  
Near Infrared ◽  
Photoacoustic Imaging ◽  
Ammonia Borane ◽  
Hollow Carbon ◽  
Carbon Based ◽  
Infrared Window

We have developed a novel nanotheranostic platform (HC-AB NPs) via loading ammonia borane (AB) into hollow carbon nanoparticles (HCs) for NIR-II photoacoustic (PA) imaging-guided NIR-II hydrogenothermal therapy.

Easy Synthesis and Imaging Applications of Cross-Linked Green Fluorescent Hollow Carbon Nanoparticles

ACS Nano ◽  
2011 ◽  
Vol 6 (1) ◽  
pp. 400-409 ◽  
Author(s):  
Youxing Fang ◽  
Shaojun Guo ◽  
Dan Li ◽  
Chengzhou Zhu ◽  
Wen Ren ◽  
...  
Keyword(s):  
Carbon Nanoparticles ◽  
Green Fluorescent ◽  
Hollow Carbon

The Flammability Limits of Hydrogen and Methane in Air at Moderately Elevated Temperatures

1997 ◽  
Author(s):  
B. B. Ale ◽  
I. Wierzba
Keyword(s):  
Residence Time ◽  
Initial Temperature ◽  
Elevated Temperatures ◽  
Hydrogen Oxidation ◽  
Initial Mixture ◽  
Spark Ignition ◽  
Stainless Steel Surface ◽  
Flammability Limits ◽  
Simple Method ◽  
The Rich

The flammability limits of hydrogen and methane in air were determined experimentally at elevated initial mixture temperatures up to 350°C at atmospheric pressure for upward flame propagation in a conventional steel test tube apparatus. Additionally the extent to which a prolonged exposure (i.e., residence time) of the mixture to elevated temperatures before spark ignition and, consequently, the existence of pre-ignition reactions that may influence the value of the lean and rich flammability limits was also investigated. It was shown that the flammability limits for methane widened approximately linearly with an increase in the initial mixture temperature over the whole range of temperatures tested. These limits were not affected by the length of the residence time before spark ignition. Different behaviour was observed for flammability limits of hydrogen. They were also widened with an increase in the initial temperature but only up to 200°C. In this initial temperature range the limits were not affected by the length of the residence time. However, at initial temperature exceeding 200°C the flammability limits, especially, the rich limits narrowed with an increase in the temperature and were significantly affected by the residence time before spark ignition. The results of detailed chemical kinetic simulation showed that the gas phase reactions of hydrogen oxidation could not be responsible for the substantial drop in the value of the rich limit. It was therefore, suggested that this drop in the value of the rich limit with the increase in the residence time was caused by the relatively low temperature catalytic reactions on the stainless steel surface of the flame tube. Simple method for calculating the hydrogen conversion to water was proposed. The results of calculations are in fair agreement with the experimental evidence.

One-pot solvothermal synthesis of highly photoluminescent carbon nanoparticles and their photocatalytic application

2014 ◽  
Vol 122 ◽  
pp. 352-354 ◽  
Author(s):  
Feng Li ◽  
Guiyan Wang ◽  
Hongren Li ◽  
Yongbo Li ◽  
Shiqi Zhou
Keyword(s):  
Solvothermal Synthesis ◽  
Carbon Nanoparticles ◽  
One Pot ◽  
Photocatalytic Application

A fast ethanol assay to detect seed deterioration

2011 ◽  
Vol 22 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Jan Kodde ◽  
Wayne T. Buckley ◽  
Corine C. de Groot ◽  
Marie Retiere ◽  
Ana Marcela Viquez Zamora ◽  
...  
Keyword(s):  
Ethanol Production ◽  
Elevated Temperatures ◽  
Seed Quality ◽  
Inverse Correlation ◽  
Hot Water ◽  
Ambient Conditions ◽  
Simple Method ◽  
Seed Deterioration ◽  
Modified Method ◽  
Water Treatments

AbstractThe most common way to test seed quality is to use a simple and reliable but time- and space-consuming germination test. In this paper we present a fast and simple method to analyse cabbage seed deterioration by measuring ethanol production from partially imbibed seeds. The method uses a modified breath analyser and is simple compared to gas chromatographic or enzymatic procedures. A modified method using elevated temperatures (40°C instead of 20°C) shortened the assay time and improved its sensitivity. The analysis showed an inverse correlation between ethanol production and seed quality (e.g. the final percentages or speed of germination and the number of normal seedlings). The increase in ethanol production was observed when cabbage seeds were deteriorated by storage under ambient conditions or hot water treatments, both of which reduced the number of normal seedlings. Premature seeds produced more ethanol upon imbibition than mature seeds. Ethanol production occurred simultaneously with oxygen consumption, indicating that lack of oxygen is not the major trigger for ethanol production.

Heterostructured CoO-Co3O4 nanoparticles anchored on nitrogen-doped hollow carbon spheres as cathode catalysts for Li–O2 batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (31) ◽  
pp. 14769-14776 ◽  
Author(s):  
Lixia Feng ◽  
Yongliang Li ◽  
Lingna Sun ◽  
Hongwei Mi ◽  
Xiangzhong Ren ◽  
...  
Keyword(s):  
Cathode Material ◽  
Catalytic Performance ◽  
Co3o4 Nanoparticles ◽  
Carbon Spheres ◽  
Simple Method ◽  
Cathode Catalysts ◽  
Nitrogen Doped ◽  
Lithium Oxygen Battery ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

CoO-Co3O4 nanoparticles coated on nitrogen-doped hollow carbon spheres (N-HC@CoO-Co3O4) are prepared by a simple method, and N-HC@CoO-Co3O4 when used as the cathode material for a lithium–oxygen battery shows high catalytic performance.

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